The "square edges" or "rounded edges" refers to the outer edges of the rotor

Axle specs are not usually listed on website specs

Black anodised finish

Radial Compliance

Dual injection molded

Sendhit Fork Stanchion Scratch Repair Kit - Black Back in Stock The "square edges" or "roundedThere is nothing worse than the anguish of surviving a gnarly crash or getting your bike off the shuttle trailer only to discover that your fork, shock, or seatpost has a big scratch or burr on it. Previously, this type of grievous injury could be considered a death sentence for the component (or your wallet) but Sendhit has come to save the day with their Sendhit Fork Stanchion Scratch Repair Kit. Suitable for use on fork, shock, and seatpost